Arched rib for a turbine



FIG. 1 is a top perspective view of an arched rib for a turbine.

FIG. 2 is a top plan view of the arched rib for a turbine depicted inFIG. 1.

FIG. 3 is a front side elevational view of the arched rib for a turbinedepicted in FIG. 1.

FIG. 4 is a bottom plan view of the arched rib for a turbine depicted inFIG. 1.

FIG. 5 is a rear side elevational view of the arched rib for a turbinedepicted in FIG. 1.

FIG. 6 is a left side elevational view of the arched rib for a turbinedepicted in FIG. 1; and,

FIG. 7 is a right side elevational view of the arched rib for a turbinedepicted in FIG. 1.

CLAIM The ornamental design for an arched rib for a turbine, as shown. 